White soot and Powder non scuffing Precipitated silica for Footwear bottoms
Product name: Precipitated silica
Similar name: White carbon black, precipitated silica,silicon dioxide,SiO2, hydrated silicon dioxide, hydrated silica
Type: ZC - 195
It imparts good finish, strength and balances at the required
physico-chemical properties of the products.
Appearance White Powder
Heating Loss at 105 ℃ for two hours 4.0 - 8.0 %
Igniting Loss 1000 ℃ for two hours Less than 7.0 %
DBP absorption Value 2.0 to 3.5 cm³ / g
45μm Mesh residue on sieve Less than 0.5 %
pH Value ( five percent aqueous suspension ) 6.0 to 8.0
SiO2 content more than 97 %
BET specific surface area is range 175 - 205 ㎡ / g
Salt As Na2SO4 Less than 2 %
Precipitated silica is used in shoe soles for its resistance to
wear and to tearing ,its non scuffing characteristics and to obtain
compounds with light color or even transperant materials.
Provides superior durability and resilience and improved modulus.
Acts as white reinforcer facilitating manufacturing of colored end
for EVA footwear ,it can be incorporated as it imparts good
abrasion and modulus properties.
Because Precipitated Silica is white it allows the formulator to
produce either colored or translucent nonmarking soles.
Precipitated Silica provides superior durability and resilience
while improving compound stiffness for all types of rubber soled
Package and storage
1. Package : 20 kg/PE bag,15 kg/paper bag,360 kg/Jumbo Bag, 500 kg
/ Jumbo Bag
2. Storage : Kept in a low temperature, dry and ventilated place,
avoid direct sunlight.
3. Shelf life : One year in ventilating, cool and dry area.